Mbta
NPM · @PIPEWORX/MCP-MBTA · 2 COMPONENTS
MBTA MCP — Boston real-time transit via the MBTA v3 API (api-v3.mbta.com)
Available components
Last scanned (11 hours ago)
Scores higher than 76% of npm servers
Category Maps and Location
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- No production dependencies, so there is no dependency health to assess. View diagnostics → Pass
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-mbta). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 2 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability66
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 795 tokens (~198/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 4 Nov 26 +15
- Malware scan: unverified → pass ▲ security
- 3 Nov 26 −14
- Malware scan: pass → unverified ▼ security
- Package version: 0.2.0 → 0.2.1 functional
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 0 to 3. That category is still filling its 30-day observation window: 0 days of observed history at the previous scan, 1 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 79
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/@pipeworx/mcp-mbta@0.2.1
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | pipeworx-io/mcp-mbta |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/pipeworx-io/mcp-mbta/.github/workflows/publish.yml@refs/heads/main |
| Rekor log index | 3655315491 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:4fc15f815243a83a2c6493adb234c05e3de9a541d1bc123be7467ca38e0e72163afa234e83fdd06d1e8359621ec7396142a034ce86ee20fab8482f9a0 |
Background: How many MCP packages publish verified provenance →
Dependencies 0 packages
| Packages resolved | 0 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
mbta_alerts ~145
Active MBTA service alerts — Boston subway T delays, commuter rail disruptions, shuttle replacements, track changes, detours, elevator outages. Filter by route to check one line, e.g. is the Red Line delayed right now. Example: mbta_alerts({ route: "Red" })
| Name | Type | Req | Description |
|---|---|---|---|
| _apiKey | string | – | Optional: free MBTA v3 API key from api-v3.mbta.com for higher rate limits |
| limit | number | – | Max alerts to return, 1-50 (default 15) |
| route | string | – | Optional route id to filter, e.g. "Red", "CR-Kingston", "66" |
No output schema declared.
No examples provided.
mbta_departures ~274
Real-time MBTA train arrival and departure predictions at a Boston station — answers "when is the next train Boston", next Red Line subway at South Station, Green Line trolley, commuter rail departures, Silver Line and bus arrivals. Accepts a station name ("South Station", "Harvard") or a place id ("place-sstat"). Falls back to the published schedule when live predictions are empty (common for commuter rail off-peak). Example: mbta_departures({ stop: "South Station", route: "Red" })
| Name | Type | Req | Description |
|---|---|---|---|
| _apiKey | string | – | Optional: free MBTA v3 API key from api-v3.mbta.com for higher rate limits |
| direction_id | number | – | Optional direction filter: 0 or 1 (meaning per route — see direction_destinations from mbta_routes) |
| limit | number | – | Max departures to return, 1-30 (default 8) |
| route | string | – | Optional route id to filter, e.g. "Red", "Green-B", "CR-Providence", "SL1", "66" (see mbta_routes) |
| stop | string | yes | Station name (e.g. "South Station", "Harvard", "Back Bay") or MBTA place id (e.g. "place-sstat") |
No output schema declared.
No examples provided.
mbta_routes ~182
List MBTA routes for the Boston subway T, commuter rail, bus, and ferry — route ids, names, and the destination each direction heads toward. type: 0-1 subway/light rail (Red, Orange, Blue, Green, Mattapan), 2 commuter rail, 3 bus (includes Silver Line), 4 ferry. Default returns subway + commuter rail + ferry; pass type 3 for buses. Example: mbta_routes({ type: "2" })
| Name | Type | Req | Description |
|---|---|---|---|
| _apiKey | string | – | Optional: free MBTA v3 API key from api-v3.mbta.com for higher rate limits |
| type | string | – | Route type filter, comma-separable: "0,1" subway, "2" commuter rail, "3" bus, "4" ferry (default "0,1,2,4") |
No output schema declared.
No examples provided.
mbta_stops ~141
List the stops and stations on an MBTA route — Boston subway T lines, commuter rail lines, bus routes, ferries. Returns stop id, name, municipality, and wheelchair accessibility, in route order. Example: mbta_stops({ route: "Red" }) or mbta_stops({ route: "CR-Worcester" })
| Name | Type | Req | Description |
|---|---|---|---|
| _apiKey | string | – | Optional: free MBTA v3 API key from api-v3.mbta.com for higher rate limits |
| route | string | yes | Route id from mbta_routes, e.g. "Red", "Green-D", "CR-Providence", "66" |
No output schema declared.
No examples provided.
How do I install the Mbta MCP server?
Mbta runs locally as an npm package, launched with npx -y @pipeworx/mcp-mbta. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @pipeworx/mcp-mbta
claude mcp add pipeworx-io-mbta -- npx -y @pipeworx/mcp-mbta
What is the Mbta MCP server?
Mbta is an MCP server listed in the public MCP registry as io.github.pipeworx-io/mbta. MBTA MCP, Boston real-time transit via the MBTA v3 API (api-v3.mbta.com). This page covers its npm package (@pipeworx/mcp-mbta).
Is the Mbta MCP server safe to use?
Mbta scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Mbta MCP server expose?
Mbta exposes 4 tools: mbta_departures, mbta_routes, mbta_stops, mbta_alerts. Their descriptions and schemas cost roughly 742 tokens of context every time the server is loaded.
Is the Mbta MCP server still maintained?
Mbta is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Mbta MCP server under?
Mbta declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.